A metallic sphere of radius R carrying a char | vedclass

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(B) According to the properties of conductors in electrostatic equilibrium,the electric field inside the material of a metallic conductor is always ze

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Zero

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(B) According to the properties of conductors in electrostatic equilibrium,the electric field inside the material of a metallic conductor is always zero.Since the electric field $E$ is zero everywhere inside the metallic sphere of radius $R$,the electric flux $\phi$ through any closed surface drawn inside the material of this sphere is given by $\phi = \oint E \cdot dA = 0$.Therefore,the electric flux at any point inside the metallic sphere of radius $R$ due to the external charge $Q$ on the other sphere is zero.

$A$ metallic sphere of radius $R$ carrying a charge $q$ is kept at a certain distance from another metallic sphere of radius $R/4$ carrying a charge $Q$. What is the electric flux at any point inside the metallic sphere of radius $R$ due to the sphere of radius $R/4$?

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